US20150298573A1 - System for maintaining acceptable battery cycle life for electric-powered vehicles - Google Patents
System for maintaining acceptable battery cycle life for electric-powered vehicles Download PDFInfo
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- US20150298573A1 US20150298573A1 US14/120,039 US201414120039A US2015298573A1 US 20150298573 A1 US20150298573 A1 US 20150298573A1 US 201414120039 A US201414120039 A US 201414120039A US 2015298573 A1 US2015298573 A1 US 2015298573A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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- B60L11/1862—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/02—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits
- B60L1/04—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits fed by the power supply line
- B60L1/06—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits fed by the power supply line using only one supply
- B60L1/08—Methods and devices for control or regulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/66—Arrangements of batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
- B60L58/13—Maintaining the SoC within a determined range
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/16—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/10—Vehicle control parameters
- B60L2240/34—Cabin temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/549—Current
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/80—Time limits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Definitions
- the present invention relates to vehicles or craft of any kind which are powered by batteries with cycle lifes which are diminished by discharging.
- a vehicle using my invention will have two sets of batteries so that in addition to having acceptable, competitive range due to larger battery mass the vehicle will also be able to operate for longer distances and therefore enjoy even greater competitive range.
- the purpose of the invention is to make all electric, battery-powered vehicles out-compete combustion engine vehicles by increasing the cycle life of the batteries such that they can be operating thousands of days and therefore permit the building of an electric vehicle which can be used for over ten years of daily operation, or for hundreds of thousands of miles of operation, both mileage and age well over that of combustion engines with transmissions.
- the electric vehicle has no transmission or combustion engine to wear out, only air conditioning and steering and chassis parts subject to wear.
- An electric vehicle with my invention will be able to be operated for years and mileage well beyond the capacity of combustion engine vehicles.
- the claimed invention differs from what currently exists. Whereas current electric vehicles use batteries that are so expensive that they can only install a few of them and therefore their owners must use the entire charge, or at least 85% of the charge, and thereby diminish their usable lifes, my system permits electric vehicle owners to use their vehicles continuously for over a decade without diminishing the capacity of their batteries.
- the invention is an improvement on what currently exists. By running down their vehicle's batteries to less than 45% of their charges owners of current electric vehicles can only recharge their batteries only a few hundred times. This means their cars will only be usable for periods less than that of combustion engine cars.
- the version of the invention discussed here includes batteries which are inexpensive and encased into removable battery modules which come in two sets per vehicle. While one set is in the vehicle to power it the other set is in an external battery charger where the batteries are assisted in their cycle life preservation by being slowly recharged with a limited current over seven or more hours.
- a battery discharge limit indicator is used which is set by the owner between 45% to 60% of battery discharge depending on the range vs. battery cycle life the owner desires. If 50% is selected than the cycle life of the batteries will be between 4,500 and 5,500 recharges.
- the discharge limit indicator is set by the owner it will limit the use of the batteries to the desired point of discharge, and the batteries will not power the drivetrain of the vehicle further unless over-ridden by an emergency switch allowing the batteries to be used in a reserve mode.
- the inexpensive batteries are loaded into the removable battery modules to form a set of batteries, with two sets of batteries per vehicle.
- the amount of inexpensive batteries comprising a set is sufficient of charge to power the vehicle for a maximum range of at least 200 miles at 50 miles per hour with no braking and using no air conditioning or heating.
- the battery discharge limit indicator informs the driver how much charge remains until the batteries are discharged to the preset point between 40% to 60% depending on the owner's choice of damage-limitation to the batteries. When the driver has reached the percentage of discharge chosen by the owner the driver changes the set of battery modules, or if unable can over-ride the limiter by using an emergency switch to access the reserve capacity of the batteries.
- the invention works in this way.
- the inexpensive batteries work by permitting a sufficient mass of batteries to be loaded into the vehicle, and to allow for two sets of batteries per vehicle, to permit the vehicles to be manufactured at costs so that the costs to the owner of the vehicle use is equal to or less than combustion engine vehicles.
- the removable battery modules permit the vehicle to be operated continuously without sitting unusable for the minimum of seven hours charging time required to charge batteries with slow current such that they are not damaged by running high current through them in fast charging times.
- the external battery charger permits the unused set of battery modules to be recharged while the other set is in use in the vehicle.
- the battery discharge limit indicator is what permits the owner to set the amount of discharge the batteries will normally endure under non-emergency conditions.
- the invention is made by constructing the removable battery modules by fashioning containers into which individual inexpensive battery cells may be placed so that their currents may be conveyed to the vehicle when the removable battery modules are installed in it.
- the vehicle can be fashioned with an electric motor to propel it and then install the removable battery modules inside it so that the current from the inexpensive battery cells may reach the motor to power it.
- the battery discharge limit indicator can be fashioned by connecting a sensor measuring the amount of charge remaining on the battery cells to a gauge visible to the driver.
- the external battery charger can be made by fabricating a housing into which the removable battery modules may be seated so that a current from an outside power source may be conveyed to the individual inexpensive battery cells to recharge them with a current low enough to require at least seven hours to recharge them fully.
- FIG. 1 shows a vehicle containing battery module housings containing battery modules enclosed within them.
- FIG. 2 shows battery modules with handles enclosed within housings from which electric cables run to power the vehicle.
- FIG. 3 shows the interior of the battery module housing with its coupling and cable.
- FIG. 4 a shows a battery module housing.
- 4 b shows individual battery cells encased within the framework composing the internal structure of the battery module.
- 4 c shows the battery module into which the internal structure is found and which is fitted into the battery module housing when that set of battery modules powers the vehicle.
- FIG. 5 shows the bottom of the battery module showing the placement of the coupling which connects the battery module and its cells to the circuit powering the vehicle.
- FIG. 6 shows the discharge limit indicator as a needle dial in which one needle is movable by the owner as an adjustment to set the discharge limit while another needle reads the actual charge left on the aggregate of the battery modules in the vehicle at that time, and the over-ride switch permitting the operator to over-ride the discharge limiter and continue using the batteries under emergency conditions.
- FIG. 7 shows the external battery charger with the placement of an individual battery module within it and the battery charger's cable extending out from it and the battery charger's cable extending out from it to an external power source.
- FIG. 1 Illustrates a vehicle seen from the side loaded with battery modules, with 101 being the vehicle body and 102 being battery module housings into which individual battery modules are placed.
- FIG. 2 Is a perspective drawing of three battery modules fitted into a housing residing inside a vehicle, with 201 being the housing body, 202 being the individual battery modules, 203 being the handles by which the battery modules are moved from place to place such as fitted into the housing, and 204 being a connecting electric cable which conveys current from the battery through the housing and outward from the housing to the power requirements of the vehicles, principally the drivetrain.
- FIG. 3 Is a cutaway perspective drawing of the interior of the battery module housing in which 301 is a coupling, which connects a battery module to the housing from which current is conveyed outside the housing using a cable 302 , and the housing body represented by 303 .
- FIG. 4 a is a perspective drawing of a battery module housing with 401 being the housing body, 402 being the individual battery modules fitted into the body, and 403 being the handles by which the battery modules are moved.
- FIG. 4 b is the interior structure of the battery module which is found inside of a battery module, in which 404 is the structure framework which holds the individual battery cells and conveys their currents through the battery module via a coupling, and 405 are individual cells.
- FIG. 5 is a perspective drawing of the bottom of a battery module 501 and showing the placement of a coupling 502 which conveys current to the framework inside in which resides individual cells.
- FIG. 6 Illustrates the discharge limit indicator in the form of a needle dial with a measured dial face 601 so that the vehicle operator can see the amount of charge remaining on the aggregated of the battery modules set installed within the vehicle as a percentage of the total charge capacity of the battery modules' aggregate.
- 602 represents a movable needle which is the control setting for the discharge limit indicator in which the setting has been set by the vehicle's owner at the mid-point of the aggregate charge of the installed battery module set, or 50% of charging capacity.
- 603 represents a gauge needle which reads the actual remaining charge left on the aggregate of the battery modules installed in the vehicle, and is reading that the remaining charge is at 75% of total charge capacity.
- the gauge dial reads left to right with a minus sign on the left of the dial and a positive sign on the right of the dial.
- 604 represents an over-ride switch which may be used by the vehicle operator so that the battery modules do not automatically disconnect from the drivetrain of the vehicle once their aggregate charge has reached 50% of full charge capacity as indicated by the setting of the movable needle. In this way everything below 50% of full charge is considered a capacity reserve only to be used in emergency conditions so that the cycle life of the batteries will be maintained so that they may be recharged for thousands of times.
- FIG. 7 Illustrates the external battery charger into which the set of battery modules which is not presently in the vehicle are placed so that the batteries can be recharged over a minimum of seven or eight hours of low current to preserve the cycle life of the batteries.
- the external battery charger outside is 701
- 702 is an interior depiction of the placement of an individual battery module with its handle 703 so it may be placed within the charger and removed from it.
- 703 is a coupling inside the charger which connects to the coupling inside the battery module so current from the outside charger may be conveyed to the battery module and distributed to the individual cells within it.
- 704 is an electric cable connecting the external battery charger to an outside power source.
Abstract
Description
- The present invention relates to vehicles or craft of any kind which are powered by batteries with cycle lifes which are diminished by discharging.
- Current all-electric vehicles are not competitive with their traditional fuel-burning, combustion-engined counterparts because they are designed to encourage their operators to use all or most of the charge of the batteries. All current dry cell, and therefore light weight, rechargeable batteries can only be discharged and recharged, or cycled, a limited number of times before the battery's capacity to accept a charge declines and falls off to an insufficient degree.
- All vehicles today use batteries which if discharged by only 15% 5% before recharging can be recharged tens of thousands of times. These same batteries if discharged by 100% can only be recharged between four to six hundred times, meaning only four to six hundred days of operation. Four to six hundred days of vehicle operation is well below the normal duration of use of combustion combustion engine vehicles, and when owners of current electric vehicles begin to see the charging capacity of their batteries decline after only a few hundred days of use they will regret having purchased such a vehicle with expensive batteries which do not permit their vehicle to last as long as a combustion powered one.
- However my system eliminates this problem through several feature and changes. The same batteries will enjoy a cycle life of approximately 5,000 recharges, or 5,000 days of operation, if the batteries are only discharged by 50% each time the vehicle is used.
- Discharging the batteries by only 50% will reduce the range of the vehicle by that much using the same batteries, therefore more battery mass must be installed to compensate for the reduced range. This may be accompanied by using inexpensive batteries as opposed to the very expensive batteries now used by all electric vehicles. Weight is not the limiting factor in designing an electric car with battery cycle life competitive to combustion engine vehicles. The limiting factor for competitiveness is the cost of the batteries such that enough batteries can be installed in the vehicle so that only a fraction of the total charge of the battery is used.
- Ideally a vehicle using my invention will have two sets of batteries so that in addition to having acceptable, competitive range due to larger battery mass the vehicle will also be able to operate for longer distances and therefore enjoy even greater competitive range.
- The purpose of the invention is to make all electric, battery-powered vehicles out-compete combustion engine vehicles by increasing the cycle life of the batteries such that they can be operating thousands of days and therefore permit the building of an electric vehicle which can be used for over ten years of daily operation, or for hundreds of thousands of miles of operation, both mileage and age well over that of combustion engines with transmissions.
- The electric vehicle has no transmission or combustion engine to wear out, only air conditioning and steering and chassis parts subject to wear. An electric vehicle with my invention will be able to be operated for years and mileage well beyond the capacity of combustion engine vehicles.
- As stated above, current battery-powered vehicles possess battery systems which will cause the batteries to only be recharged a few hundred times. Purchasers of current electric vehicles will experience usable lifes and performances of their expensive vehicles which are much less than less-expensive combustion engine cars. This invention solves this problem.
- By using a less expensive rechargeable battery, and providing two sets of batteries for the vehicle, sufficient batteries can be installed so that the acceptable range and continuous operation is achieved by switching, or swapping, between the battery sets and utilizing no more than 55% of the batteries' charge when in use.
- The claimed invention differs from what currently exists. Whereas current electric vehicles use batteries that are so expensive that they can only install a few of them and therefore their owners must use the entire charge, or at least 85% of the charge, and thereby diminish their usable lifes, my system permits electric vehicle owners to use their vehicles continuously for over a decade without diminishing the capacity of their batteries.
- The invention is an improvement on what currently exists. By running down their vehicle's batteries to less than 45% of their charges owners of current electric vehicles can only recharge their batteries only a few hundred times. This means their cars will only be usable for periods less than that of combustion engine cars.
- Owners of my vehicles using my system will enjoy acceptable range without using more than 50% of their vehicles' batteries charge, and they may select the amount of discharge they wish to employ in normal, non-reserve conditions. This may be applied to any and all devices using rechargeable batteries such as any type of buses, vans, trucks, automobiles, motorcycles, scooters, boats and ships, aircraft and spacecraft, toys, mobile electronic devices such as computers and telephones, radios and two-way radios, transceivers as only a few examples.
- The version of the invention discussed here includes batteries which are inexpensive and encased into removable battery modules which come in two sets per vehicle. While one set is in the vehicle to power it the other set is in an external battery charger where the batteries are assisted in their cycle life preservation by being slowly recharged with a limited current over seven or more hours. To allow the owner to control how much of the batteries in the vehicle are allowed to discharge under normal operation a battery discharge limit indicator is used which is set by the owner between 45% to 60% of battery discharge depending on the range vs. battery cycle life the owner desires. If 50% is selected than the cycle life of the batteries will be between 4,500 and 5,500 recharges. Once the discharge limit indicator is set by the owner it will limit the use of the batteries to the desired point of discharge, and the batteries will not power the drivetrain of the vehicle further unless over-ridden by an emergency switch allowing the batteries to be used in a reserve mode.
- The inexpensive batteries are loaded into the removable battery modules to form a set of batteries, with two sets of batteries per vehicle. The amount of inexpensive batteries comprising a set is sufficient of charge to power the vehicle for a maximum range of at least 200 miles at 50 miles per hour with no braking and using no air conditioning or heating. The battery discharge limit indicator informs the driver how much charge remains until the batteries are discharged to the preset point between 40% to 60% depending on the owner's choice of damage-limitation to the batteries. When the driver has reached the percentage of discharge chosen by the owner the driver changes the set of battery modules, or if unable can over-ride the limiter by using an emergency switch to access the reserve capacity of the batteries.
- The invention works in this way. The inexpensive batteries work by permitting a sufficient mass of batteries to be loaded into the vehicle, and to allow for two sets of batteries per vehicle, to permit the vehicles to be manufactured at costs so that the costs to the owner of the vehicle use is equal to or less than combustion engine vehicles. The removable battery modules permit the vehicle to be operated continuously without sitting unusable for the minimum of seven hours charging time required to charge batteries with slow current such that they are not damaged by running high current through them in fast charging times. The external battery charger permits the unused set of battery modules to be recharged while the other set is in use in the vehicle. The battery discharge limit indicator is what permits the owner to set the amount of discharge the batteries will normally endure under non-emergency conditions.
- The invention is made by constructing the removable battery modules by fashioning containers into which individual inexpensive battery cells may be placed so that their currents may be conveyed to the vehicle when the removable battery modules are installed in it. The vehicle can be fashioned with an electric motor to propel it and then install the removable battery modules inside it so that the current from the inexpensive battery cells may reach the motor to power it. The battery discharge limit indicator can be fashioned by connecting a sensor measuring the amount of charge remaining on the battery cells to a gauge visible to the driver. Construct an adjustment on the battery discharge limit indicator so the owner may set the amount of discharge permitted under normal conditions, and a switch which can be used by the driver to over-ride the owner's settings under emergency conditions in which the vehicle cannot be brought to the site of the second set of batteries in the external battery charger within the owner's set discharge. The external battery charger can be made by fabricating a housing into which the removable battery modules may be seated so that a current from an outside power source may be conveyed to the individual inexpensive battery cells to recharge them with a current low enough to require at least seven hours to recharge them fully.
- To limit damage to the batteries from excessive discharge only inexpensive batteries and the battery discharge limit indicator are required. It is possible to increase the usable life and cycle life of the batteries or cells while keeping them permanently installed in the vehicle and recharge them using an internal recharger which operates on a current low enough to recharge them over at least seven or eight hours.
- Having thus described the invention and it's components, reference will be now be made to the accompanying drawings, which are not necessarily to scale, and wherein:
-
FIG. 1 shows a vehicle containing battery module housings containing battery modules enclosed within them. -
FIG. 2 shows battery modules with handles enclosed within housings from which electric cables run to power the vehicle. -
FIG. 3 shows the interior of the battery module housing with its coupling and cable. -
FIG. 4 a shows a battery module housing. 4 b shows individual battery cells encased within the framework composing the internal structure of the battery module. 4 c shows the battery module into which the internal structure is found and which is fitted into the battery module housing when that set of battery modules powers the vehicle. -
FIG. 5 shows the bottom of the battery module showing the placement of the coupling which connects the battery module and its cells to the circuit powering the vehicle. -
FIG. 6 shows the discharge limit indicator as a needle dial in which one needle is movable by the owner as an adjustment to set the discharge limit while another needle reads the actual charge left on the aggregate of the battery modules in the vehicle at that time, and the over-ride switch permitting the operator to over-ride the discharge limiter and continue using the batteries under emergency conditions. -
FIG. 7 shows the external battery charger with the placement of an individual battery module within it and the battery charger's cable extending out from it and the battery charger's cable extending out from it to an external power source. - The present invention now will be described more fully hereafter with reference to the accompanying drawings, in which some drawings, in which some examples of the embodiments of the inventions are shown, Indeed, these inventions may be embodied in many different forms and should not be constructed as limited to the embodiment set forth herein; rather, these embodiments are provided by way of example so that this disclosure will satisfy applicable legal requirements.
- Like numbers refer to like elements throughout.
-
FIG. 1 Illustrates a vehicle seen from the side loaded with battery modules, with 101 being the vehicle body and 102 being battery module housings into which individual battery modules are placed. -
FIG. 2 Is a perspective drawing of three battery modules fitted into a housing residing inside a vehicle, with 201 being the housing body, 202 being the individual battery modules, 203 being the handles by which the battery modules are moved from place to place such as fitted into the housing, and 204 being a connecting electric cable which conveys current from the battery through the housing and outward from the housing to the power requirements of the vehicles, principally the drivetrain. -
FIG. 3 Is a cutaway perspective drawing of the interior of the battery module housing in which 301 is a coupling, which connects a battery module to the housing from which current is conveyed outside the housing using acable 302, and the housing body represented by 303. -
FIG. 4 a is a perspective drawing of a battery module housing with 401 being the housing body, 402 being the individual battery modules fitted into the body, and 403 being the handles by which the battery modules are moved. -
FIG. 4 b is the interior structure of the battery module which is found inside of a battery module, in which 404 is the structure framework which holds the individual battery cells and conveys their currents through the battery module via a coupling, and 405 are individual cells. -
FIG. 5 is a perspective drawing of the bottom of abattery module 501 and showing the placement of acoupling 502 which conveys current to the framework inside in which resides individual cells. -
FIG. 6 Illustrates the discharge limit indicator in the form of a needle dial with a measureddial face 601 so that the vehicle operator can see the amount of charge remaining on the aggregated of the battery modules set installed within the vehicle as a percentage of the total charge capacity of the battery modules' aggregate. 602 represents a movable needle which is the control setting for the discharge limit indicator in which the setting has been set by the vehicle's owner at the mid-point of the aggregate charge of the installed battery module set, or 50% of charging capacity. 603 represents a gauge needle which reads the actual remaining charge left on the aggregate of the battery modules installed in the vehicle, and is reading that the remaining charge is at 75% of total charge capacity. The gauge dial reads left to right with a minus sign on the left of the dial and a positive sign on the right of the dial. 604 represents an over-ride switch which may be used by the vehicle operator so that the battery modules do not automatically disconnect from the drivetrain of the vehicle once their aggregate charge has reached 50% of full charge capacity as indicated by the setting of the movable needle. In this way everything below 50% of full charge is considered a capacity reserve only to be used in emergency conditions so that the cycle life of the batteries will be maintained so that they may be recharged for thousands of times. -
FIG. 7 Illustrates the external battery charger into which the set of battery modules which is not presently in the vehicle are placed so that the batteries can be recharged over a minimum of seven or eight hours of low current to preserve the cycle life of the batteries. The external battery charger outside is 701, while 702 is an interior depiction of the placement of an individual battery module with itshandle 703 so it may be placed within the charger and removed from it. 703 is a coupling inside the charger which connects to the coupling inside the battery module so current from the outside charger may be conveyed to the battery module and distributed to the individual cells within it. 704 is an electric cable connecting the external battery charger to an outside power source. - Many modifications and other embodiments of the innovation set forth herein will come to mind to one skilled in the art to which these inventions pertain having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the inventions are not limited to the specific examples of the embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for the purpose of limitation.
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US14/120,039 US11104231B2 (en) | 2014-04-17 | 2014-04-17 | System for maintaining acceptable battery cycle life for electric-powered vehicles |
US17/460,250 US20210391622A1 (en) | 2014-04-17 | 2021-08-29 | Battery and Motor Systems for Electric-Powered Vehicles |
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US20220302561A1 (en) * | 2021-03-17 | 2022-09-22 | Power.Global, Pbc | Electric terminals with concentric springs |
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